1
1
Expression ((Project names + (Projection + Change column names to column identifiers)))
  Limit (preliminary LIMIT (without OFFSET))
    ReadFromStorage (SystemNumbers)
Expression ((Project names + (Projection + Change column names to column identifiers)))
  Limit (preliminary LIMIT (without OFFSET))
    ReadFromStorage (SystemNumbers)
(Expression)
ExpressionTransform
  (Limit)
  Limit
    (ReadFromStorage)
    Numbers 0 → 1
(Expression)
ExpressionTransform
  (Limit)
  Limit
    (ReadFromStorage)
    Numbers 0 → 1
1